Range from the cheapest replacement of a header tank £181 (Kalmans plumbing based in IG9) to the dearest replacement of a header tank £500 (Heat Nest Ltd based in N9).
Comparing plumbers estimates for replacing an expansion header water tank for your central heating gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes to replace a header tank in E4 by posting a job with HaMuch and we will send it to plumbers in E4.